The judge, Justice Akenhead, adjourned the case for sentencing on Tuesday.

Ms Lynch, who was known as Maj to her friends, was taken to hospital after she was found at her Southampton home by carers, suffering from "severe abdominal pain".

The court heard that the 51-year-old was reluctant to tell her carers what had happened to her.

Doctors examined the Ms Lynch and found a full 400ml bottle of shampoo in her abdominal cavity.

They removed the bottle but she tragically died two days later.

GETTY

McBride inserted a bottle into Ms Lynch's anus

here was nobody else who could have been responsible for what the prosecution says was a perverted sexual assault

William Mousely QC

William Mousley QC, prosecuting, said it would not have been possible for Ms Lynch - who did not tell hospital staff what had happened - to have caused the damage herself.

He said: "She was at the very least reluctant to say what had caused this terrible pain, either denying that anything had happened to her or refusing to answer when asked the question, but she did confirm to the nurses she saw in hospital she had been assaulted.

"She was obviously very scared."

Mousley explained that McBride confessed to visiting Ms Lynch's home at the time the injuries occurred.

He said: "There was nobody else who could have been responsible for what the prosecution says was a perverted sexual assault."

Describing McBride - who told jurors he tried to help Ms Lynch after walking past her home and hearing her call for help - Mousley said that he was a "stocky well-built man" who admitted to injecting steroids.

He said that McBride had admitted to an acquaintance that he enjoyed sex with older women and during April last year he had viewed "extreme violent pornography".

He said: "Having invited himself into Maj Lynch's home, he callously inflicted horrendous internal injuries to her, leaving her to die a prolonged and no doubt excruciatingly painful death.

"Daniel McBride has repeatedly lied about what happened that night and showed no remorse for his actions which can only have added to the uncertainty and distress of her friends and family.

"I hope today's verdict and the sentence which follows can provide a degree of satisfaction that some justice has been achieved for Maj."